Calculating deposit needed You put $10,000 in an account earning 4%. After 3 years, you make another deposit into the same account. Four years later (that is, 7 years after your original $10,000 deposit), the account balance is $22,000. What was the amount of the deposit at the end of year 3 ? The amount of the deposit at the end of year 3 is $ (Round to the nearest cent.)